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71. 发明专利

JP2007208313A Injection-locked oscillator 有权
标题翻译：注射锁定振荡器
公开(公告)号：JP2007208313A
公开(公告)日：2007-08-16
申请号：JP2006021336
申请日：2006-01-30
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： NISHIDA KAZUHIRO , TSURU MASAOMI , KAWAKAMI KENJI , MIZUTANI HIROYUKI
IPC分类号： H03L7/24
摘要： PROBLEM TO BE SOLVED: To obtain an injection-locked oscillator capable of reducing injection power with which synchronization can be established.
SOLUTION: The injection-locked oscillator includes a tip-opened stab 2 and a transmission line 3 constituting a resonant circuit with a resonant frequency f
0 which are connected to an injection terminal 1 to which a reference signal of (1/n)f
0 is injected; a field effect transistor 4a in which a microstrip line 4b is connected between a source terminal and a ground so as to have a negative resistance near the frequency f
0 , the reference signal is injected into a gate terminal via the resonant circuit, harmonics of the injected reference signal and an oscillation wave synchronized with the harmonics are generated; and a tip-opened stab 5 provided between the drain terminal of the FET 4a and an output terminal for outputting a signal having an output frequency f
0 or harmonics of f
0 , and feeding an output of an oscillation element back to the FET 4a. Further, a tip-opened stab 4c as an impedance circuit used as a short circuit point at (1/n)f
0 is connected to the source terminal of the FET 4a.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：获得能够降低可以建立同步的注入功率的注入锁定振荡器。解决方案：注入锁定振荡器包括尖端开路尖端2和构成谐振频率f 0 的谐振电路的传输线3，其连接到注入端子1，（1 / n）f 0 的参考信号被注入; 场效应晶体管4a，其中微带线4b连接在源极端子和地之间以便在频率f 0 附近具有负电阻，参考信号被注入到栅极端子经由产生谐振电路，注入参考信号的谐波和与谐波同步的振荡波; 以及设置在FET 4a的漏极端子和用于输出具有输出频率f 0 或f 0 的谐波的信号的输出端子之间的尖端开路的针5，并将振荡元件的输出馈送到FET 4a。此外，作为在（1 / n）f 0 下的短路点的阻抗电路的尖端开口的尖头4c连接到FET 4a的源极端子。版权所有（C）2007，JPO＆INPIT

72. 发明专利

JP2006217460A Even-harmonic mixer 有权
标题翻译：即时谐波混频器
公开(公告)号：JP2006217460A
公开(公告)日：2006-08-17
申请号：JP2005030138
申请日：2005-02-07
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： HAMANO SATOSHI , KAWAKAMI KENJI , MIYAZAKI MORIYASU , TAKEUCHI NORIO , IKEMATSU HIROSHI
IPC分类号： H03D7/02 , H03D7/18 , H04B1/26
摘要： PROBLEM TO BE SOLVED: To achieve a wide bandwidth of an RF frequency band of an even-harmonic mixer for using a stub to divide an LO wave, an RF signal and an IF signal.
SOLUTION: When an LO wave and an RF signal are inputted, respective anti-parallel diode pairs 4 (called diode 4) generate current of an IF frequency band corresponding to a conductance excited by the LO wave and to voltage applied by the RF signal, and signals of Frf-2 Flo frequency components generated by the respective diodes are subjected to in-phase synthesis and outputted as an IF signal from the respective diodes 4. The IF signals outputted from the two diodes 4 are synthesized and then outputted from an IF terminal 3 via a low pass filter 8. Thus, the wide bandwidth of an RF frequency band can be achieved because both ends of a transmission line 9 of 1/2 wavelength are used, as a short-circuit point of an LO wave located at an RF terminal 2 side of the respective diodes, in an LO frequency band in which LO waves are in-phase at its both ends and a stub with an opened end of 1/4 wavelength is not used in an LO wave causing restriction of the conventional RF frequency band.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了实现用于使用短截线来分频LO波，RF信号和IF信号的偶次谐波混频器的RF频带的宽带宽。解决方案：当输入LO波和RF信号时，相应的反并联二极管对4（称为二极管4）产生与由LO波激发的电导相对应的IF频带的电流和由 RF信号和由各个二极管产生的Frf-2 Flo频率分量的信号经过同相合成并作为IF信号从相应的二极管4输出。从两个二极管4输出的IF信号被合成然后输出从IF端子3通过低通滤波器8.因此，由于使用1/2波长的传输线路9的两端作为LO的短路点，所以可以实现RF频带的宽带宽位于相应二极管的RF端子2侧的LO波段中的LO波在其两端处于同相的LO频带中，并且在LO波中不使用具有1/4波长的开路端的短截线限制传统的RF频带。版权所有（C）2006，JPO＆NCIPI

73. 发明专利

JP2006005769A Negative capacitor circuit 有权
标题翻译：负电容电路
公开(公告)号：JP2006005769A
公开(公告)日：2006-01-05
申请号：JP2004181542
申请日：2004-06-18
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： TSURU MASAOMI , KAWAKAMI KENJI , TAJIMA KENICHI , MIYAZAKI MORIYASU , MIYAMOTO KAZUHIRO , NAKANE MASABUMI
IPC分类号： H03H11/48
摘要： PROBLEM TO BE SOLVED: To obtain a negative capacitor circuit that does not satisfy an unneeded oscillation condition by reducing loop gain in the negative capacitor circuit.
SOLUTION: An attenuator 4a is inserted and connected serially between the gate terminal of a first FET 1a and the drain terminal of a second FET 1b of the two FETS whose sources are grounded, an attenuator 4b is inserted and connected serially between the drain terminal of the first FET 1a and the gate terminal of the second FET 1b, an inductor one end of which is grounded is connected to the drain terminal of the first FET 1a, and a load one end of which is grounded is connected to the drain terminal of the second FET 1b.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：通过减小负电容电路中的环路增益来获得不满足不需要的振荡条件的负电容器电路。解决方案：衰减器4a串联连接在第一FET 1a的栅极端子和源极接地的两个FET的第二FET 1b的漏极端子之间，衰减器4b插入并串联连接第一FET 1a的漏极端子和第二FET 1b的栅极端子，其一端接地的电感器连接到第一FET 1a的漏极端子，并且其一端接地的负载连接到漏极端子。版权所有（C）2006，JPO＆NCIPI

74. 发明专利

JP2004357025A Receiver 审中-公开
标题翻译：接收器
公开(公告)号：JP2004357025A
公开(公告)日：2004-12-16
申请号：JP2003153063
申请日：2003-05-29
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： SHIMOZAWA MITSUHIRO , KAGEYAMA CHIEMI , TANIGUCHI EIJI , SUEMATSU KENJI , TAKAGI SUNAO , KAWAKAMI KENJI , TAJIMA KENICHI
IPC分类号： H04B1/26
摘要： PROBLEM TO BE SOLVED: To provide a receiver which can simplify an arrangement of an analog circuit, realize downsizing of the receiver and low power consumption, and optionally change a receiving communication system.
SOLUTION: A receiver is provided with a low noise amplifier 2 which amplifies signals of a plurality of communication systems received by an antenna 1, local oscillation sources 3a-3c which output local oscillation waves, a mixer 4 which generates a mixing wave of the signals of the communication systems and the local oscillation waves to be outputted as an IF signal, a low-pass filter 5 which removes unnecessary waves, a variable gain amplifier 6 which amplifies the IF signal to a predetermined level, an AD converter 7 which converts a signal into a digital signal, band-pass filters 8a-8c which filter signals of a predetermined communication system, band-pass filters 9a-9c which filter a desired signal within the communication system, and a decoding and controlling circuit 10 which decodes the desired signal, where a frequency of the local oscillation waves is set so that the mixing wave may be arranged adjacent on a frequency axis.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种可以简化模拟电路的布置的接收机，实现接收机的小型化和低功耗，并且可选地改变接收通信系统。解决方案：接收机设置有低噪声放大器2，其放大由天线1接收的多个通信系统的信号，输出本地振荡波的本地振荡源3a-3c，产生混合波的混频器4 将作为IF信号输出的通信系统的信号和本地振荡波的信号，去除不需要的波的低通滤波器5，将IF信号放大到预定电平的可变增益放大器6，AD转换器7 其将信号转换为数字信号，滤波预定通信系统的信号的带通滤波器8a-8c，对通信系统内的期望信号进行滤波的带通滤波器9a-9c，以及解码和控制电路10，解码所需的信号，其中本地振荡波的频率被设置为使得混频可以在频率轴上相邻布置。版权所有（C）2005，JPO＆NCIPI

75. 发明专利

JP2004350190A Direct conversion receiver 有权
公开(公告)号：JP2004350190A
公开(公告)日：2004-12-09
申请号：JP2003147470
申请日：2003-05-26
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： KAWAKAMI KENJI , KAGEYAMA CHIEMI , TANIGUCHI EIJI , SUEMATSU KENJI , TAKAGI SUNAO , SHIMOZAWA MITSUHIRO , TAJIMA KENICHI
IPC分类号： H04B1/30 , H04B1/69 , H04B1/707 , H04J13/12
摘要： PROBLEM TO BE SOLVED: To obtain a direct conversion receiver which can deal flexibly with various type communication system by fixing the band of a base band filter.
SOLUTION: The direct conversion receiver includes frequency converters 3a, 3b, a spreading code generator circuit 21, a mixer 22 for generating a local oscillation signal, means 4 for distributing the local oscillation signal to the respective frequency converters 3a, 3b at a phase difference of 90° each other, a low-pass filter 20 and an analog-to-digital converter 6 having a fixed band, a variable gain amplifier 5, a despreading circuit 7 and a demodulator 8. The respective frequency converters 3a, 3b each frequency converts a received RF (radio frequency) signal based on the local oscillation signal, thereby converting the RF signal to a base band signal having a fixed band width. The despreading circuit 7 and the demodulator 8 respectively despread and demodulate the base band signal.
COPYRIGHT: (C)2005,JPO&NCIPI

76. 发明专利

JP2004350097A Frequency signal source 审中-公开
公开(公告)号：JP2004350097A
公开(公告)日：2004-12-09
申请号：JP2003145913
申请日：2003-05-23
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： TAJIMA KENICHI , KAWAKAMI KENJI , SHIMOZAWA MITSUHIRO , TAKAGI SUNAO
IPC分类号： H03L7/18
摘要： PROBLEM TO BE SOLVED: To obtain a frequency signal source whose dealable frequencies can cover a plurality of frequency bands by a single voltage controlled oscillator (VCO). SOLUTION: This frequency signal source is provided with a channel control section 8 which outputs a control signal corresponding to an output frequency, a reference oscillation source 51 for generating a reference signal corresponding to the control signal, a single voltage controlled oscillator 5 which generates a high frequency signal corresponding to a comparison signal, a distributor 6 which distributes the high-frequency signal into two, a variable frequency divider 7 which outputs a synchronous signal which has a predetermined frequency obtained by dividing the frequency of one of the distributed high frequency signals from the distributor and corresponds to the control signal, a phase comparator 3 which compares the phase of the synchronous signal with that of the reference signal and outputs its result as the comparison signal, a fixed frequency divider 9 which divides the other high frequency signal from the distributor into a predetermined frequency, and a frequency selection section 10 which outputs a specific frequency component corresponding to the control signal out of components of the output signal outputted from the fixed frequency divider. COPYRIGHT: (C)2005,JPO&NCIPI

77. 发明专利

JP2003061148A Mobile phone system, mobile phone controller, mobile phone and reader/writer 有权
标题翻译：移动电话系统，移动电话控制器，移动电话和读写器
公开(公告)号：JP2003061148A
公开(公告)日：2003-02-28
申请号：JP2001245627
申请日：2001-08-13
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： KAWAKAMI KENJI , TSUBOTA YOSHIHIRO , TAKAHASHI IKUO , TAKAYAMA NAOHISA , SHIMOZAWA MITSUHIRO , ISODA YOJI , ISHIDA OSAMI , YOSHIDA TOSHIYA , MIYAJI TAIZO
IPC分类号： H04M1/66 , H04B7/26 , H04W4/04 , H04W48/04 , H04Q7/38
摘要： PROBLEM TO BE SOLVED: To solve a problem of a conventional mobile phone system where a radio wave sent from a wireless communication means of a simple base station installed at a border of a closed space gives effect on a device and a passing pacemaker and turns on/off in mistake a power supply of a mobile phone not entering/getting out from the closed space but passing around the border.
SOLUTION: A mobile phone entering/getting out of the closed space incorporates a wireless card for transmitting its own telephone number or the like by means of magnetic field, the simple base station places a wireless card reader, which receives the telephone number or the like when the wireless card approaches the wireless card reader and transmits a power control signal to the wireless card by means of magnetic field, at a border of the closed space and places a wireless communication means that transmits a signal for communication pause/release setting to a public base station at the outside of the closed space.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：为了解决传统的移动电话系统的问题，其中从安装在封闭空间边界的简单基站的无线通信装置发送的无线电波对设备和通过的起搏器产生影响并打开 /错误地将手机的电源没有进入/离开封闭的空间，而是绕过边界。解决方案：进入/离开封闭空间的移动电话包含用于通过磁场发送其自己的电话号码等的无线卡，简单基站放置接收电话号码等的无线读卡器当无线卡接近无线读卡器并且通过磁场将功率控制信号发送到无线卡时，在封闭空间的边界处，并且将用于通信暂停/释放设置的信号发送到无线通信装置的无线通信装置公共基站在封闭空间外面。

78. 发明专利

JP2003060556A Usage advisability control system of portable telephone, portable telephone set, interrogator, responder and usage advisability control method of portable telephone 审中-公开
标题翻译：便携式电话，便携式电话机，INTERROGATOR，反应器的使用可能性控制系统和便携式电话的使用可能性控制方法
公开(公告)号：JP2003060556A
公开(公告)日：2003-02-28
申请号：JP2001244397
申请日：2001-08-10
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： KAWAKAMI KENJI , TSUBOTA YOSHIHIRO , TAKAHASHI IKUO , TAKAYAMA NAOHISA , SHIMOZAWA MITSUHIRO , ISODA YOJI , ISHIDA OSAMI , YOSHIDA TOSHIYA , MIYAJI TAIZO
IPC分类号： H04M1/66 , H04B7/26 , H04M1/725
摘要： PROBLEM TO BE SOLVED: To overcome the problem wherein usage advisability of a portable telephone set 101 cannot be controlled surely, since a signal from simple base station equipment 100 is propagated to a region of a certain wide area which exceeds an area in the vicinity of an entrance, when a propagation area of radio wave of specified small power is not adjusted precisely, possibility exists that a power-on signal 109 is received erroneously in the step that the portable telephone set 101, in which power of a radio communication part which communicates with public base station equipment 102 is tuned off enters a building 105, and distinction of entering and exiting persons is difficult.
SOLUTION: This system controls usage advisability of a portable telephone set which enters or leaves a specified communication restricted region. The system is provided with an interrogating means which is arranged at an entrance or an exit in the communication restricted region and outputs a signal for identifying itself by using a magnetic field as communication medium, and a responding means which is arranged in the portable telephone set and turns a power source of the portable telephone set on or off by receiving a signal from the interrogating means.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：为了克服便携式电话机101的使用可靠性不能可靠地控制的问题，由于来自简单基站设备100的信号被传播到某一广域的区域，该区域超过了入口，当没有精确地调整指定的小功率的无线电波的传播区域时，在便携式电话机101的无线电通信部件的功率的步骤中可能会错误地接收到接通信号109，与公共基站设备102的通信被关闭进入建筑物105，并且进入和离开的人的区别是困难的。解决方案：该系统控制进入或离开指定的通信限制区域的便携式电话机的使用建议。该系统设置有询问装置，其布置在通信限制区域的入口或出口处，并且通过使用磁场作为通信介质输出用于识别自身的信号，以及布置在便携式电话机中的响应装置并通过接收来自询问装置的信号来打开或关闭便携式电话机的电源。

79. 发明专利

JPH11109025A FM-CW RADAR 失效
公开(公告)号：JPH11109025A
公开(公告)日：1999-04-23
申请号：JP26473597
申请日：1997-09-30
申请人： MITSUBISHI ELECTRIC CORP
发明人： MATSUO KOICHI , FURUYA TERUO , TAMAKI TSUTOMU , ITO KENJI , KAWAKAMI KENJI
IPC分类号： G01S13/34
摘要： PROBLEM TO BE SOLVED: To lessen a leakage level of a local signal and lessen noise converted into the intermediate frequency band of a receiver to reduce receiver noise index, by using an even higher harmonic mixer for the frequency conversion of a local signal. SOLUTION: A second power distribution device distributes the signal of an intermediate frequency F1 F to be supplied to an even higher harmonic mixer for local signal conversion 22 and a fundamental harmonic mixer for intermediate frequency band signal conversion 17. The even higher harmonic mixer for the local signal conversion 22 mixes a local signal and a signal output from one output terminal of the second power distribution device 12, and the frequency of a signal outputted from one output terminal of the second power distribution device 12 and the signal of the addition and subtraction of the frequency of N times of the local signal are outputted. A first amplifier 14 amplifies the output of the even higher harmonic mixer for the local signal conversion 22. A signal processing part 20 controls the modulation of a first oscillator as well as the conventional FM-CW radar, and an amplified video signal is received to calculate a distance to a target and relative speed.

80. 发明专利

JPH1117456A EVEN HIGHER HARMONIC MIXER, ORTHOGONAL MIXER, IMAGE REJECTION MIXER RECEIVER AND PHASE SYNCHRONIZING OSCILLATOR 失效
公开(公告)号：JPH1117456A
公开(公告)日：1999-01-22
申请号：JP16634597
申请日：1997-06-23
申请人： MITSUBISHI ELECTRIC CORP
发明人： ITO KENJI , KAWAKAMI KENJI , SHIMOZAWA MITSUHIRO
IPC分类号： H03L7/085 , H03D7/14 , H03D7/18 , H03D9/06
摘要： PROBLEM TO BE SOLVED: To provide small-sized, spurious and operation stable even higher harmonic mixer, orthogonal mixer and image rejection mixer and a receiver and a phase synchronizing oscillator to which the mixers are applied. SOLUTION: High frequency signals are inputted from an RF terminal 32, outputted in mutually opposite phases at an active balun 102 and respectively inputted to the terminals (a) and (b) of an APDP (anti-parallel diode pair) ring 101. Local oscillation wave signals are inputted from an LO terminal to the terminal (c) of the APDP ring 101. Intermediate frequency signals are outputted from the terminal (a) and (b) of the APDP ring 101 to IF terminals 34a and 34b in the mutually opposite phases.

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